Im so sorry this happened. I almost had the exact same thing happen to me today. I rescued an American Game Fowl, which has a very long neck. I have been trying the rooster collar for over 1 month, slowing tightening it, with very little luck. The crow comes out and is only stifled at the end...
I believe the point of the prior author is that if you put anything around a neck tight enough, you can kill it. Sometimes, the chickens neck anatomy or crowing ability may make it impossible to have a crow collar tight enough to stop the crowing, and not so tight that it asphyxiates and dies...
